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Homework Help: Velocity as a Function of position

  1. Jan 25, 2005 #1
    At an outdoor market, a bunch of bananas is set into oscillatory motion with an amplitude of 20.0cm on a spring with a spring constant of 16.0 N/m. It is observed that the maximum speed of the bananas is 40.0 cm/s. What is the weight of the bananas in newtons?
  2. jcsd
  3. Jan 25, 2005 #2
    This is an isolated system, so mechanical energy is conserved.


    The maximum speed will occur at x=0 (x is the distance the spring is stretched from its equilibrium position). Also,


    and as you probably know


    You should be able to figure it out using that.
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